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module BlackBoxInverter(
input [0:0] in,
output [0:0] out
);
assign out = !in;
endmodule
module BlackBoxPassthrough(
input [0:0] in,
output [0:0] out
);
assign out = in;
endmodule
module BlackBoxRegister(
input [0:0] clock,
input [0:0] in,
output [0:0] out
);
reg [0:0] register;
always @(posedge clock) begin
register <= in;
end
assign out = register;
endmodule
module BlackBoxConstant #(
parameter int WIDTH=1,
parameter int VALUE=1
) (
output [WIDTH-1:0] out
);
assign out = VALUE;
endmodule
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